Each blade in this set of 8 steak knives is crafted from fine grained, X50CrMoV15 German Steel, with a full tang for durability, stain resistance, and exceptional edge retention. The blades undergo an (ultra6) stage heat treatment to ensure strength and function, measuring HRC 58 +/- 2 on the Rockwell Hardness Scale. The set includes a solid Acacia block for storage. The 5-inch handle and 5-inch blade make for easy slicing of grilled meats, whether it's tender filet mignon or thick chops. These knives are NSF International Certified and come with a lifetime warranty against manufacturer defects. Simply wash with warm water and a little detergent, rinse carefully and dry with a towel.